Folding knife



FIG. 1 is a perspective view of a folding knife in accordance with my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a partial left side elevational view of an alternate embodiment of the folding knife.

The broken lines showing further details of the folding knife are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a folding knife, as shown. 